./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:34:03,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:34:03,703 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:34:03,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:34:03,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:34:03,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:34:03,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:34:03,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:34:03,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:34:03,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:34:03,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:34:03,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:34:03,729 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:34:03,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:34:03,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:34:03,730 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-02-06 09:34:03,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:34:04,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:34:04,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:34:04,006 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:34:04,006 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:34:04,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-06 09:34:05,278 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a913e3a1/e9c2f480845744b3ac84838bbfe1371c/FLAG1f96c4e16 [2025-02-06 09:34:05,579 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:34:05,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-06 09:34:05,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a913e3a1/e9c2f480845744b3ac84838bbfe1371c/FLAG1f96c4e16 [2025-02-06 09:34:05,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a913e3a1/e9c2f480845744b3ac84838bbfe1371c [2025-02-06 09:34:05,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:34:05,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:34:05,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:34:05,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:34:05,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:34:05,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:34:05" (1/1) ... [2025-02-06 09:34:05,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59890ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:05, skipping insertion in model container [2025-02-06 09:34:05,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:34:05" (1/1) ... [2025-02-06 09:34:05,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:34:05,937 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-06 09:34:05,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:34:05,962 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:34:05,999 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-06 09:34:06,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:34:06,033 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-02-06 09:34:06,038 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:34:06,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06 WrapperNode [2025-02-06 09:34:06,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:34:06,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:34:06,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:34:06,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:34:06,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,069 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-02-06 09:34:06,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:34:06,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:34:06,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:34:06,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:34:06,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,080 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:34:06,083 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:34:06,083 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:34:06,083 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:34:06,084 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (1/1) ... [2025-02-06 09:34:06,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:34:06,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:34:06,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:34:06,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:34:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-02-06 09:34:06,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-02-06 09:34:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:34:06,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:34:06,150 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:34:06,232 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:34:06,233 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:34:06,376 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:34:06,377 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:34:06,386 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:34:06,386 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:34:06,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:34:06 BoogieIcfgContainer [2025-02-06 09:34:06,386 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:34:06,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:34:06,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:34:06,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:34:06,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:34:05" (1/3) ... [2025-02-06 09:34:06,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a170769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:34:06, skipping insertion in model container [2025-02-06 09:34:06,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:06" (2/3) ... [2025-02-06 09:34:06,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a170769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:34:06, skipping insertion in model container [2025-02-06 09:34:06,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:34:06" (3/3) ... [2025-02-06 09:34:06,395 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-02-06 09:34:06,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:34:06,409 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 75 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-02-06 09:34:06,409 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:34:06,462 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:34:06,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 78 transitions, 163 flow [2025-02-06 09:34:06,539 INFO L124 PetriNetUnfolderBase]: 3/107 cut-off events. [2025-02-06 09:34:06,541 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:34:06,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 107 events. 3/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 164 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-02-06 09:34:06,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 78 transitions, 163 flow [2025-02-06 09:34:06,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 78 transitions, 163 flow [2025-02-06 09:34:06,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:34:06,563 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9d5fd5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:34:06,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 09:34:06,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:34:06,578 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-02-06 09:34:06,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:34:06,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:34:06,579 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:34:06,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 09:34:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:34:06,584 INFO L85 PathProgramCache]: Analyzing trace with hash -630926582, now seen corresponding path program 1 times [2025-02-06 09:34:06,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:34:06,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282280311] [2025-02-06 09:34:06,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:34:06,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:34:06,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 09:34:06,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 09:34:06,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:06,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:34:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:34:07,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:34:07,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282280311] [2025-02-06 09:34:07,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282280311] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:34:07,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:34:07,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:34:07,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40127970] [2025-02-06 09:34:07,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:34:07,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:34:07,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:34:07,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:34:07,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:34:07,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 78 [2025-02-06 09:34:07,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:07,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:34:07,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 78 [2025-02-06 09:34:07,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:34:07,313 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2025-02-06 09:34:07,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:34:07,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 31/115 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2025-02-06 09:34:07,316 INFO L140 encePairwiseOnDemand]: 69/78 looper letters, 13 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2025-02-06 09:34:07,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 166 flow [2025-02-06 09:34:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:34:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:34:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 360 transitions. [2025-02-06 09:34:07,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2025-02-06 09:34:07,330 INFO L175 Difference]: Start difference. First operand has 78 places, 78 transitions, 163 flow. Second operand 6 states and 360 transitions. [2025-02-06 09:34:07,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 166 flow [2025-02-06 09:34:07,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 63 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:34:07,337 INFO L231 Difference]: Finished difference. Result has 71 places, 62 transitions, 138 flow [2025-02-06 09:34:07,339 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2025-02-06 09:34:07,341 INFO L279 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2025-02-06 09:34:07,341 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 138 flow [2025-02-06 09:34:07,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:07,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:34:07,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:34:07,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:34:07,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 09:34:07,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:34:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash 954251229, now seen corresponding path program 1 times [2025-02-06 09:34:07,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:34:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629986939] [2025-02-06 09:34:07,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:34:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:34:07,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 09:34:07,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 09:34:07,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:07,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:34:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:34:07,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:34:07,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629986939] [2025-02-06 09:34:07,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629986939] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:34:07,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:34:07,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:34:07,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662635030] [2025-02-06 09:34:07,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:34:07,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:34:07,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:34:07,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:34:07,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:34:07,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 78 [2025-02-06 09:34:07,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:07,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:34:07,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 78 [2025-02-06 09:34:07,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:34:07,504 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2025-02-06 09:34:07,504 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:34:07,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-02-06 09:34:07,504 INFO L140 encePairwiseOnDemand]: 70/78 looper letters, 9 selfloop transitions, 2 changer transitions 5/67 dead transitions. [2025-02-06 09:34:07,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 180 flow [2025-02-06 09:34:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:34:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:34:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 389 transitions. [2025-02-06 09:34:07,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8311965811965812 [2025-02-06 09:34:07,507 INFO L175 Difference]: Start difference. First operand has 71 places, 62 transitions, 138 flow. Second operand 6 states and 389 transitions. [2025-02-06 09:34:07,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 180 flow [2025-02-06 09:34:07,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 170 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:34:07,509 INFO L231 Difference]: Finished difference. Result has 74 places, 62 transitions, 146 flow [2025-02-06 09:34:07,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=74, PETRI_TRANSITIONS=62} [2025-02-06 09:34:07,510 INFO L279 CegarLoopForPetriNet]: 78 programPoint places, -4 predicate places. [2025-02-06 09:34:07,510 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 62 transitions, 146 flow [2025-02-06 09:34:07,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:07,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:34:07,510 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:34:07,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:34:07,511 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 09:34:07,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:34:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1200041823, now seen corresponding path program 1 times [2025-02-06 09:34:07,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:34:07,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25443411] [2025-02-06 09:34:07,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:34:07,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:34:07,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 09:34:07,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 09:34:07,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:07,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:34:07,525 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:34:07,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 09:34:07,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 09:34:07,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:07,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:34:07,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:34:07,547 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:34:07,548 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-02-06 09:34:07,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-02-06 09:34:07,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-02-06 09:34:07,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 09:34:07,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-02-06 09:34:07,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:34:07,550 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 09:34:07,567 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 09:34:07,568 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 09:34:07,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 09:34:07 BasicIcfg [2025-02-06 09:34:07,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 09:34:07,572 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 09:34:07,572 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 09:34:07,572 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 09:34:07,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:34:06" (3/4) ... [2025-02-06 09:34:07,574 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 09:34:07,574 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 09:34:07,575 INFO L158 Benchmark]: Toolchain (without parser) took 1965.65ms. Allocated memory is still 201.3MB. Free memory was 157.6MB in the beginning and 79.7MB in the end (delta: 77.9MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2025-02-06 09:34:07,575 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:07,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.34ms. Allocated memory is still 201.3MB. Free memory was 157.2MB in the beginning and 130.1MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:34:07,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.10ms. Allocated memory is still 201.3MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:07,576 INFO L158 Benchmark]: Boogie Preprocessor took 13.05ms. Allocated memory is still 201.3MB. Free memory was 128.0MB in the beginning and 127.1MB in the end (delta: 893.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:34:07,576 INFO L158 Benchmark]: IcfgBuilder took 303.57ms. Allocated memory is still 201.3MB. Free memory was 127.1MB in the beginning and 112.7MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:34:07,576 INFO L158 Benchmark]: TraceAbstraction took 1183.25ms. Allocated memory is still 201.3MB. Free memory was 111.9MB in the beginning and 80.8MB in the end (delta: 31.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2025-02-06 09:34:07,576 INFO L158 Benchmark]: Witness Printer took 2.28ms. Allocated memory is still 201.3MB. Free memory was 80.8MB in the beginning and 79.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:07,577 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.34ms. Allocated memory is still 201.3MB. Free memory was 157.2MB in the beginning and 130.1MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.10ms. Allocated memory is still 201.3MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.05ms. Allocated memory is still 201.3MB. Free memory was 128.0MB in the beginning and 127.1MB in the end (delta: 893.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 303.57ms. Allocated memory is still 201.3MB. Free memory was 127.1MB in the beginning and 112.7MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1183.25ms. Allocated memory is still 201.3MB. Free memory was 111.9MB in the beginning and 80.8MB in the end (delta: 31.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Witness Printer took 2.28ms. Allocated memory is still 201.3MB. Free memory was 80.8MB in the beginning and 79.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=2] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=2, tids={-2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 34 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 09:34:07,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:34:09,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:34:09,843 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-02-06 09:34:09,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:34:09,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:34:09,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:34:09,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:34:09,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:34:09,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:34:09,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:34:09,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:34:09,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:34:09,898 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:34:09,899 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:34:09,899 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:34:09,899 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:34:09,899 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:34:09,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:34:09,902 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:34:09,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:34:09,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:34:09,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:34:09,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:34:09,903 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-02-06 09:34:10,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:34:10,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:34:10,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:34:10,165 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:34:10,165 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:34:10,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-06 09:34:11,372 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4568e2b1b/7750025ef6cf49748abd8aaab22a783b/FLAG47d110926 [2025-02-06 09:34:11,714 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:34:11,715 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-06 09:34:11,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4568e2b1b/7750025ef6cf49748abd8aaab22a783b/FLAG47d110926 [2025-02-06 09:34:11,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4568e2b1b/7750025ef6cf49748abd8aaab22a783b [2025-02-06 09:34:11,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:34:11,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:34:11,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:34:11,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:34:11,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:34:11,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:34:11" (1/1) ... [2025-02-06 09:34:11,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bc8bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:11, skipping insertion in model container [2025-02-06 09:34:11,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:34:11" (1/1) ... [2025-02-06 09:34:11,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:34:12,085 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-06 09:34:12,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:34:12,111 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:34:12,136 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-06 09:34:12,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:34:12,182 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-02-06 09:34:12,188 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:34:12,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12 WrapperNode [2025-02-06 09:34:12,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:34:12,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:34:12,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:34:12,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:34:12,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,233 INFO L138 Inliner]: procedures = 265, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-02-06 09:34:12,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:34:12,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:34:12,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:34:12,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:34:12,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,258 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:34:12,272 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:34:12,272 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:34:12,272 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:34:12,273 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (1/1) ... [2025-02-06 09:34:12,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:34:12,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:34:12,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:34:12,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-02-06 09:34:12,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-02-06 09:34:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:34:12,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:34:12,336 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:34:12,425 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:34:12,426 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:34:12,591 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:34:12,592 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:34:12,603 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:34:12,604 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:34:12,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:34:12 BoogieIcfgContainer [2025-02-06 09:34:12,604 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:34:12,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:34:12,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:34:12,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:34:12,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:34:11" (1/3) ... [2025-02-06 09:34:12,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7be1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:34:12, skipping insertion in model container [2025-02-06 09:34:12,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:34:12" (2/3) ... [2025-02-06 09:34:12,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7be1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:34:12, skipping insertion in model container [2025-02-06 09:34:12,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:34:12" (3/3) ... [2025-02-06 09:34:12,611 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-02-06 09:34:12,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:34:12,623 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 74 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-02-06 09:34:12,623 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:34:12,685 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:34:12,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2025-02-06 09:34:12,774 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2025-02-06 09:34:12,777 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:34:12,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 3/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 157 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-02-06 09:34:12,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2025-02-06 09:34:12,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2025-02-06 09:34:12,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:34:12,800 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2420ca23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:34:12,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 09:34:12,811 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:34:12,812 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-02-06 09:34:12,812 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:34:12,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:34:12,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:34:12,813 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 09:34:12,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:34:12,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1839658489, now seen corresponding path program 1 times [2025-02-06 09:34:12,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:34:12,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115328048] [2025-02-06 09:34:12,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:34:12,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:34:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:34:12,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:34:12,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:34:12,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 09:34:12,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 09:34:12,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:12,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:34:12,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 09:34:12,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:34:13,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-02-06 09:34:13,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2025-02-06 09:34:13,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:34:13,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2025-02-06 09:34:13,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:34:13,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2025-02-06 09:34:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:34:13,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:34:13,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:34:13,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115328048] [2025-02-06 09:34:13,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115328048] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:34:13,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:34:13,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 09:34:13,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35842841] [2025-02-06 09:34:13,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:34:13,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 09:34:13,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:34:13,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 09:34:13,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:34:13,667 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 77 [2025-02-06 09:34:13,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 11 states, 11 states have (on average 47.54545454545455) internal successors, (523), 11 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:13,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:34:13,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 77 [2025-02-06 09:34:13,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:34:13,769 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2025-02-06 09:34:13,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:34:13,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 33/118 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2025-02-06 09:34:13,770 INFO L140 encePairwiseOnDemand]: 57/77 looper letters, 17 selfloop transitions, 16 changer transitions 1/71 dead transitions. [2025-02-06 09:34:13,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 71 transitions, 214 flow [2025-02-06 09:34:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 09:34:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 09:34:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 596 transitions. [2025-02-06 09:34:13,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.645021645021645 [2025-02-06 09:34:13,782 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 12 states and 596 transitions. [2025-02-06 09:34:13,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 71 transitions, 214 flow [2025-02-06 09:34:13,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:34:13,789 INFO L231 Difference]: Finished difference. Result has 83 places, 68 transitions, 197 flow [2025-02-06 09:34:13,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=197, PETRI_PLACES=83, PETRI_TRANSITIONS=68} [2025-02-06 09:34:13,793 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2025-02-06 09:34:13,793 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 68 transitions, 197 flow [2025-02-06 09:34:13,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 47.54545454545455) internal successors, (523), 11 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:13,793 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:34:13,793 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:34:13,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:34:13,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:34:13,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 09:34:13,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:34:13,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2094160997, now seen corresponding path program 1 times [2025-02-06 09:34:13,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:34:13,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472777671] [2025-02-06 09:34:13,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:34:13,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:34:13,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:34:14,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:34:14,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:34:14,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 09:34:14,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 09:34:14,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:14,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:34:14,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:34:14,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:34:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:34:14,072 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:34:14,072 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:34:14,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472777671] [2025-02-06 09:34:14,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472777671] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:34:14,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:34:14,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:34:14,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744415001] [2025-02-06 09:34:14,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:34:14,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:34:14,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:34:14,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:34:14,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:34:14,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2025-02-06 09:34:14,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 68 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:14,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:34:14,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2025-02-06 09:34:14,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:34:14,175 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2025-02-06 09:34:14,176 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 09:34:14,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 83 events. 0/83 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-02-06 09:34:14,176 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 9 selfloop transitions, 2 changer transitions 5/72 dead transitions. [2025-02-06 09:34:14,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 72 transitions, 239 flow [2025-02-06 09:34:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:34:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:34:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2025-02-06 09:34:14,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.829004329004329 [2025-02-06 09:34:14,178 INFO L175 Difference]: Start difference. First operand has 83 places, 68 transitions, 197 flow. Second operand 6 states and 383 transitions. [2025-02-06 09:34:14,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 72 transitions, 239 flow [2025-02-06 09:34:14,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 216 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-06 09:34:14,180 INFO L231 Difference]: Finished difference. Result has 83 places, 67 transitions, 188 flow [2025-02-06 09:34:14,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=83, PETRI_TRANSITIONS=67} [2025-02-06 09:34:14,181 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2025-02-06 09:34:14,181 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 67 transitions, 188 flow [2025-02-06 09:34:14,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:34:14,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:34:14,181 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:34:14,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 09:34:14,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:34:14,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 09:34:14,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:34:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash 189254461, now seen corresponding path program 1 times [2025-02-06 09:34:14,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:34:14,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241452952] [2025-02-06 09:34:14,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:34:14,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:34:14,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:34:14,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:34:14,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:34:14,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 09:34:14,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 09:34:14,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:14,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:34:14,447 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:34:14,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 09:34:14,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 09:34:14,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:34:14,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:34:14,479 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 09:34:14,479 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:34:14,480 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-02-06 09:34:14,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-02-06 09:34:14,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-02-06 09:34:14,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 09:34:14,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-02-06 09:34:14,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:34:14,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:34:14,682 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 09:34:14,701 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 09:34:14,701 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 09:34:14,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 09:34:14 BasicIcfg [2025-02-06 09:34:14,704 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 09:34:14,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 09:34:14,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 09:34:14,705 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 09:34:14,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:34:12" (3/4) ... [2025-02-06 09:34:14,706 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 09:34:14,707 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 09:34:14,707 INFO L158 Benchmark]: Toolchain (without parser) took 2960.35ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 63.8MB in the end (delta: 50.4MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: CDTParser took 2.38ms. Allocated memory is still 117.4MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.84ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 85.8MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.95ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: Boogie Preprocessor took 35.17ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: IcfgBuilder took 331.84ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 65.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: TraceAbstraction took 2098.44ms. Allocated memory is still 142.6MB. Free memory was 65.0MB in the beginning and 63.9MB in the end (delta: 1.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2025-02-06 09:34:14,708 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 63.8MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:34:14,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.38ms. Allocated memory is still 117.4MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.84ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 85.8MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.95ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.17ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 331.84ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 65.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2098.44ms. Allocated memory is still 142.6MB. Free memory was 65.0MB in the beginning and 63.9MB in the end (delta: 1.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 63.8MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=1073741824] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=1073741824, tids={2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 309 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 6 mSDtfsCounter, 523 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 09:34:14,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample